Question

Without calculating cubes, find
the value of
(1/3)³ + (1/3)³-(5/6)³

With working plz!!
thanks!!!​

Answer 1

Answer:

Step-by-step explanation:

(1/3)

Answer 2

Answer:

(1/3)^3+(1/3)^3-(5/6)^3

2(1/3)^3-(5/6)^3

(2/3)^3-(5/6)^3

we know that....a^3 - b^3 = (a-b) ( a^2 +ab+b^2)

(2/3-5/6) [(2/3)^2+2/3×5/6+(5/6)^2]

(4-5/6) (4/9+5/9+25/36)

(-1/6) (16+20+25/36)

-1/6 × 61/36

-61/216.....answer